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Finding the Fourth Proportional to 406,565.20, 609,604.80 and 248,906.80

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Solution

The fourth proportional to 406,565.20, 609,604.80 and 248,906.80 is: 373,211.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,565.20 : 609,604.80 = 248,906.80 : x
  2. Step 2: Convert to fraction form
    406,565.20/609,604.80 = 248,906.80/x
  3. Step 3: Cross multiply
    406,565.20x = 609,604.80 × 248,906.80
  4. Step 4: Simplify right side
    406,565.20x = 151,734,780,032.64
  5. Step 5: Solve for x
    x = 151,734,780,032.64/406,565.20
  6. Step 6: Final answer
    x = 373,211.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.